High-strength bolt torque wrench for narrow space and fastening method of high-strength bolt

Abstract

The invention discloses a high-strength bolt torque wrench for a narrow and small space and a fastening method of a high-strength bolt. The torque wrench comprises a handle, a nut and a nut, the rotating seat is rotationally connected to the top of the handle, a driving device used for driving the rotating seat to rotate is connected in the handle, and the driving device is connected with the rotating seat; the torque head is used for being arranged on the high-strength bolt in a sleeving mode; the two-fold rod is used for driving the torque head to rotate, the first end of the two-fold rod is inserted into the top of the rotating seat in a sliding mode in the rotating axial direction of the rotating seat, and the second end of the two-fold rod is inserted into the bottom of the torque head in a sliding mode in the rotating axial direction of the torque head; the top of the rotating seat is provided with a first inserting hole for the first end of the two-folding rod to be inserted, the bottom of the torque head is provided with a second inserting hole for the second end of the two-folding rod to be inserted, and the practicability is improved by arranging the torque wrench.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a high-strength bolt torque wrench used in a narrow space and a high-strength bolt fastening method. Background Art

[0002] When the high-strength bolts are finally tightened in a narrow space, it is difficult to tighten the high-strength bolts, and the tightening of the high-strength bolts cannot reach the designed torque. Since the high-strength bolts are not screwed into place, the plum blossom heads of the high-strength bolts are exposed. In order not to affect the appearance, the exposed plum blossom heads need to be cut in the existing construction method, but the installation quality is affected after cutting. In view of this situation, the existing construction method is to use an angled torque wrench to further tighten the high-strength bolts in a narrow space, but torque wrenches with different angles are required under different working conditions, which is less practical, and manual tightening is required when tightening the high-strength bolts, which is time-consuming and laborious. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a high-strength bolt torque wrench and a high-strength bolt tightening method for a narrow space. The folding angles of multiple two-fold rods can be adjusted according to the working conditions on the construction site, thereby improving practicality. The torque head can also be controlled by a driving device to automatically tighten the high-strength bolts, saving time and effort.

[0004] To achieve the above object, the technical solution adopted by the present invention is a high-strength bolt torque wrench for use in a narrow space, comprising:

[0005] handle;

[0006] A rotating seat rotatably connected to the top of the handle, wherein a driving device for driving the rotating seat to rotate is connected inside the handle, and the driving device is connected to the rotating seat;

[0007] Used for torque head mounted on high-strength bolts;

[0008] A two-fold rod is used to drive the torque head to rotate and has an adjustable angle. The first end of the two-fold rod is inserted into the top of the rotating seat for sliding along the rotation axis of the rotating seat, and the second end is inserted into the bottom of the torque head for sliding along the rotation axis of the torque head. The top of the rotating seat is provided with a first plugging hole for inserting the first end of the two-fold rod, and the bottom of the torque head is provided with a second plugging hole for inserting the second end of the two-fold rod.

[0009] A further improvement of the high-strength bolt torque wrench for a narrow space of the present invention is that there are multiple bifold rods, and the multiple bifold rods are arranged at intervals along the circumference of the rotating seat.

[0010] A further improvement of the high-strength bolt torque wrench for narrow space of the present invention is that the driving device is a motor, the motor is connected to the handle, a rotating bearing is connected between the rotating seat and the handle, and the motor shaft of the motor is connected to the rotating seat.

[0011] A further improvement of the high-strength bolt torque wrench for narrow spaces of the present invention is that the handle is connected with an adjustment button for presetting the torque parameter of the torque head, a start button for controlling the start of the motor, and a controller for controlling the motor to shut down when the torque head reaches the preset torque parameter, and the controller is connected to the motor.

[0012] A further improvement of the high-strength bolt torque wrench for a narrow space of the present invention is that a display for displaying preset torque parameters is also connected to the handle, and the display is connected to the controller.

[0013] A further improvement of the high-strength bolt torque wrench for narrow space of the present invention is that the two-fold rod includes two transmission rods, the first ends of the two transmission rods are respectively inserted into the first insertion hole and the second insertion hole, and the second ends of the two transmission rods are hinged to each other.

[0014] A method for fastening high-strength bolts in a narrow space, comprising the steps of:

[0015] Step 1: Provide the high-strength bolt torque wrench for narrow space mentioned above;

[0016] Step 2: Adjust the angle of the two-fold rod to insert the torque head into the narrow space and put it on the high-strength bolt;

[0017] Step 3: Use a driving device to control the rotation of the rotating seat to drive the two-fold rod to rotate, and then drive the torque head to rotate to final tighten the high-strength bolt.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] By setting up a two-fold rod, the long-degree transmission of the torque head can be achieved, which meets the construction conditions of various narrow spaces and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1It is a front view of the high-strength bolt torque wrench used in a narrow space according to the present invention.

[0022] Figure 2 The present invention is a detailed diagram of the handle structure of a high-strength bolt torque wrench for use in a narrow space.

[0023] Figure 3 The figure is a detailed diagram of the two-fold rod structure of the high-strength bolt torque wrench used in a narrow space of the present invention.

[0024] In the figure: 1. handle; 2. rotating seat; 3. two-fold rod; 301. transmission rod; 302. ear plate; 303. plug plate; 304. pin; 4. torque head; 5. display; 6. start button; 7. adjustment button. DETAILED DESCRIPTION

[0025] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] The high-strength bolt torque wrench for narrow space and the high-strength bolt fastening method of the present invention are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] See also Figure 1 to Figure 3 As shown, the high-strength bolt torque wrench for narrow spaces includes:

[0028] Handle 1;

[0029] A rotating seat 2 is rotatably connected to the top of the handle 1, and a driving device for driving the rotating seat 2 to rotate is connected inside the handle 1, and the driving device is connected to the rotating seat 2;

[0030] A torque head 4 for sleeved on a high-strength bolt;

[0031] A bifold rod 3 is used to drive the torque head 4 to rotate and has an adjustable angle. The first end of the bifold rod 3 is slidably inserted into the top of the rotating base 2 along the rotation axis of the rotating base 2, and the second end is slidably inserted into the bottom of the torque head 4 along the rotation axis of the torque head 4. The top of the rotating base 2 is provided with a first plugging hole for the first end of the bifold rod 3 to be inserted, and the bottom of the torque head 4 is provided with a second plugging hole for the second end of the bifold rod 3 to be inserted.

[0032] When the two-fold rod 3 is folded at an angle, it drives the rotating base 2 to rotate. As the rotating base 2 rotates, the two ends of the two-fold rod 3 will also slide adaptively along the axial direction of the first socket and the second socket to achieve angular transmission, driving the torque head 4 to rotate.

[0033] Specifically, the torque head 4 includes a ratchet sleeve for sleeved on the high-strength bolt and a connecting seat connected to the bottom of the ratchet sleeve, and the second plug hole is opened at the bottom of the connecting seat.

[0034] Specifically, both ends of the bifold rod 3 are connected with an anti-slip rod, which is coaxially connected to the bifold rod 3 and has a diameter larger than the bifold rod 3, and the first insertion hole and the second insertion hole both include a first insertion section for sliding insertion of the anti-slip rod and a second insertion section for inserting the bifold rod 3, the first insertion section is connected to the second insertion section, the aperture of the first insertion section is adapted to the anti-slip rod, the aperture of the second insertion section is adapted to the bifold rod 3, and the depth of the first insertion section is greater than the length of the anti-slip rod.

[0035] By providing the anti-slip rod, it is prevented that the end of the two-fold rod 3 slips out of the first insertion hole or the second insertion hole when the two-fold rod 3 rotates, thereby affecting the rotation of the torque head 4, thereby improving practicality.

[0036] Preferably, there are multiple bifold rods 3 , and the multiple bifold rods 3 are arranged at intervals along the circumference of the rotating base 2 .

[0037] Specifically, the plurality of bifolding rods 3 can be folded in the same direction and the positions of the folding points are the same.

[0038] Preferably, the driving device is a motor, the motor is connected to the handle 1 , a rotating bearing is connected between the rotating seat 2 and the handle 1 , and the motor shaft of the motor is connected to the rotating seat 2 .

[0039] Specifically, the rotating base 2 is cylindrical, and the motor shaft is coaxially connected to the rotating base 2 .

[0040] Preferably, the handle 1 is connected with an adjustment button 7 for presetting the torque parameter of the torque head 4, a start button 6 for controlling the start of the motor, and a controller for controlling the motor to shut down when the torque head 4 reaches the preset torque parameter, and the controller is connected to the motor.

[0041] By providing the controller, the rotation of the torque head 4 can be accurately controlled to reach a preset torque parameter, thereby improving the construction accuracy.

[0042] Preferably, the handle 1 is also connected to a display 5 for displaying preset torque parameters, and the display is connected to the controller.

[0043] By providing the display 5, it is convenient for construction workers to adjust the preset torque parameters intuitively.

[0044] Specifically, a transmission module for transmitting the preset torque parameter to the controller is also connected to the display 5, and the transmission module is connected to the controller.

[0045] After adjusting the preset torque parameter, the display 5 will also transmit the preset torque parameter to the controller through the transmission module. When the motor rotates and drives the torque head 4 to rotate to reach the preset torque parameter, the controller controls the motor to stop operating.

[0046] Preferably, the two-fold rod 3 includes two transmission rods 301 , the first ends of the two transmission rods 301 are respectively inserted into the first insertion hole and the second insertion hole, and the second ends of the two transmission rods 301 are hinged to each other.

[0047] Specifically, the second end of one of the transmission rods 301 is connected to two ear plates 302, and the second end of the other transmission rod 301 is connected to a plug plate 303. A space for inserting the plug plate 303 is formed between the two ear plates 302. A pin 304 is connected between the plug plate 303 and the two ear plates 302. The two ear plates 302 and the plug plate 303 are provided with connecting holes for the pin 304 to pass through.

[0048] A method for fastening high-strength bolts in a narrow space, comprising the steps of:

[0049] Step 1: Provide the high-strength bolt torque wrench for narrow space mentioned above;

[0050] Step 2: Adjust the included angle of the two-fold rod 3 so that the torque head 4 is inserted into the narrow space and sleeved on the high-strength bolt;

[0051] Step 3: Use a driving device to control the rotation of the rotating seat 2 to drive the two-fold rod 3 to rotate, and then drive the torque head 4 to rotate to final tighten the high-strength bolt.

[0052] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0053] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high-strength bolt torque wrench for use in narrow spaces, characterized in that: include: handle; A rotating seat rotatably connected to the top of the handle, wherein a driving device for driving the rotating seat to rotate is connected inside the handle, and the driving device is connected to the rotating seat; Used for torque head mounted on high-strength bolts; A two-fold rod is used to drive the torque head to rotate and has an adjustable angle. The first end of the two-fold rod is inserted into the top of the rotating seat for sliding along the rotation axis of the rotating seat, and the second end is inserted into the bottom of the torque head for sliding along the rotation axis of the torque head. The top of the rotating seat is provided with a first plugging hole for inserting the first end of the two-fold rod, and the bottom of the torque head is provided with a second plugging hole for inserting the second end of the two-fold rod.

2. The high-strength bolt torque wrench for narrow space according to claim 1, characterized in that: There are multiple bifold rods, and the multiple bifold rods are arranged at intervals along the circumference of the rotating seat.

3. The high-strength bolt torque wrench for narrow space according to claim 1, characterized in that: The driving device is a motor, the motor is connected to the handle, a rotating bearing is connected between the rotating seat and the handle, and the motor shaft of the motor is connected to the rotating seat.

4. The high-strength bolt torque wrench for narrow space as claimed in claim 3, characterized in that: The handle is connected with an adjustment button for presetting the torque parameter of the torque head, a start button for controlling the start of the motor, and a controller for controlling the motor to shut down when the torque head reaches the preset torque parameter, and the controller is connected to the motor.

5. The high-strength bolt torque wrench for narrow space as claimed in claim 4, characterized in that: The handle is also connected to a display for displaying preset torque parameters, and the display is connected to the controller.

6. The high-strength bolt torque wrench for narrow space as claimed in claim 1, characterized in that: The two-fold rod comprises two transmission rods, the first ends of the two transmission rods are respectively inserted into the first insertion hole and the second insertion hole, and the second ends of the two transmission rods are hinged to each other.

7. A method for fastening high-strength bolts in a narrow space, characterized in that: Includes steps: Step 1: providing a high-strength bolt torque wrench for narrow space as claimed in claim 1; Step 2: Adjust the angle of the two-fold rod to insert the torque head into the narrow space and put it on the high-strength bolt; Step 3: Use a driving device to control the rotation of the rotating seat to drive the two-fold rod to rotate, and then drive the torque head to rotate to final tighten the high-strength bolt.

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